Introduction to Complex Numbers

What is the result of subtracting (5+3i) from (7+2i)?

• 2 - i

• 6 - 4i

• 4 - i

• 3 - 2i

What is the product of (2+3i) and (4+5i)?

• 6 + 20i

• -7 + 22i

• 10 + 15i

• 5 + 22i

Identify the imaginary part of the complex number 8+9i.

• 11i

• 7i

• 9i

• 10i

What is the sum of (1+2i) and (3-4i)?

• 5 - 3i

• 4 - 2i

• 6 - 5i

• 2 + 2i

What is the difference between (5+7i) and (2-3i)?

• 3 + 10i

• 1 + 4i

• 6 - 10i

• 8 - 4i

What is the product of (3+4i) and (2-5i)?

• 20 - 3i

• 23 - 7i

• 30 - 9i

• 26 - 7i

Identify the real part of the complex number 9+6i.

• 6

• 15

• 3i

• 9

Identify the imaginary part of the complex number 4-8i.

• -8i

• 4+8i

• 8i

• -4i

Calculate (2+5i) + (3-2i).

• 6+3i

• 5+3i

• 4-2i

• 7-3i

Calculate (8+3i) - (4-2i).

• 2+i

• 6+5i

• 10-3i

• 4+5i